I searched but could not find a thread specific for this scenario.

I know that DL interlines with AF. So I start in OKC with a DL D1 ticket to CDG via ATL. Once in CDG, I then use an economy ticket for CDG-TXL.

I have printed copies of both itineraries but would it not be sufficient to show the DL ticket counter my DL EBP then use the AF app or AF EBP to identify the final segment?

So question for the return AF economy TXL-CDG then D1 to OKC via MSP.

It has been so long since I had to linterline luggage that paper tickets were part of the story.